Improvement in brick-machines



P. K. DEDEHICK. Brick-Mahmas.l N0. 42,375. Patented-September2,1873.

UNITED N STATES PATENT OEEroE.

PETER x. DEDEEICK, 0E ALBANY, NEw YORK.

IMPROVEMENT IN BRICK-MACHINES.

. Speciication forming part of Letters Patent No. 142,375, dated September 2, 1873; application led December 21, 1872.

To all whom it may concern.:

Beit known that I, PETER K. DEDERIGK, of Albany, in the county of Albany and State of New York, have invented a new and Imlproved Brick-Machine, of which the following pushing out the mold-boxes. Fig. 2 is a lon gitudinal sectional elevation taken on the line .fr .fr of Fig. 1, and showing the attachments to the mixer-shaft, and the relative arrangement of it with the clay-holder and the dischargingthroat, by which it is adapted for mixing the clay and discharging it. Fig. 3 is a transverse sectional elevation ofthe machine taken on the line y y of Fig. V2, and showing the arrangement of the press-box.

Similar letters of reference indicate corresponding parts.

A represents the ways, whereon the moldboxes are placed to be pushed forward under the press-box B to vbe iilled, and thence out upon the platform C, from which they are removed. D represents the pusher, in front of which the boxes are placed, and by which they are pushed along intermittingly. It swings on the rock-shaft E, on which is a crank, F, to which the part G of a connecting-rod, composed of the parts G E, is connected, the part H being connected to the crank I, which works the rock-shaft by these devices. The part H of the connecting-rod is arranged in the part G, so as to slide during part of the movement, the pusher stopping in the back movement before the part H ceases moving in that direction, and being set in motion in the forward direction when on the return movement of the said part H, a lug, K, on it comes up to a stop on the part G, which prevents it from sliding any further on said part G, and so connects the latter' that it must move with part H. Now, instead of having this stop so as to make a positive connection, I propose to fix it in the form of a kind of latch, L, with one end merely resting on the part G of the connecting-rod, while the other ond is pivoted to one end of a bar, M, which at its other end is pivoted to the part G, as shown at N, and this bar M has a screw,(),between its connections actin g again st rod G, so as to deflect its joint with the latch more or less from a right line between pivot N and the end of the latch, which rests on the rod G, and acts as the aforesaid stop for connecting thepartsGand H ofthe connecting-rod,to cause the latter to actuate the rock-shaft. A weigh t, l), is suspended from the latch in such manner as to constantly pullthe parts toward the aforesaid right line, but the screw O holds the joint above the said right line, so that a certain amount of force delivered on the end of the latch-piece by the lug'K will raise the weight and double up the latch and bar M, so as to allow the rock-shaft and pusher to remain at rest While the driving-crank I and the part H of the connecting-rod -continue l their movements, thus throwing the power off from the pusher. By the weight and the screw the tripping-latch and bar M are so adjusted that the requisite force for pushing out the mold-boxes will be sustained without tripping, but any considerable increase such, as will be caused by the binding of the mold-boxes by a stone or the like wedging in between them and the press-box, will instantly cause the tripping of the latch, and thus save breaking the machinery. Q represents the part of the mill in which the mud or clay is supplied. It is the mixershaft, and S the mixing arms or blades proper. T is the part of the mill comprising the mixedclay holder, Iinto which the clay is delivered from the part Q through the screen U, and from which it is delivered through the throat V into the press-box B.

As the machines of this character have been heretofore made, the mixing-box Q and the mixer-shaft were placed enough higher than the bottom of the mixed-clay holder T to afford room in the latter below the shaft It for a special discharging apparatus, consisting of a horizontal shaft with blades upon the ends of arms, which was rranged under the shaft R, and provided with gearing for turning it, and the mixer-shaft was provided with the ordinary mixing-blades S throughout its whole length. This arrangement was necessary for the lack of any practicable arrangement of contrivances on the mixer-shaft by which the clay could be at the same time worked along the 1n ixed-clay holderlaterally and discharged, and the clay be of the same consistency throughout the length of the press-box; but the said arrangement is objectionable, on account of the extra height and cost involved, and its 'connection highly desirable, which I have effected by the use, on the mixer-shaft in the mixed-clay holder, of the broad arms W with their planes oblique to the axis of the shaft 5 the arms X with their pla-nes parallel with the axis ofthe shaft; the obliquevanesYon the arms WV, next to the screen; and the dischargingblades Z on the ends ofthe arms, the saidblades being slightly spiral to the shaft, also tangential to acircle about two-thirds ofthe size of the one described by the outer edges of the blades.

The oblique or spiralinclinations of the arms, vanes, and blades are all, ofcourse, in the direction required for Working the clay across the mixed-clay holder from the screen, while the shaft turns in the direction for pushing the mixed clay out through the throat V.

With these devices arranged on the mixershaft, substantially as represented in the drawing, I am enabled to dispense with the special discharger heretofore used, and to lower the mixenshaft relatively tothe miXed-clayholder, so that they take the place of it, and While serving to discharge the clay they are equally as efficacious in mixing and tempering it as the old arrangement.

To accomplish the third part of my invention, I construct the lower part, a, of the side of the case of the mill, Whereon the press-box B is arranged, so as to incline inward as much as possible into the angle of the lower part of the case cut off by the circle described by the dischargingblades, and construct the pressbox on the same inclination and attach it to the said part, all as clearly shown in Fig. 8, and so considerably lessen the Waste space through which the clay has to be pushed, and also lessen the mass Vof clay to be moved, and thereby economize power.

Havin g thus describedv my invention, I claim as new and desire to secure by Letters Patentl. The combination, in a brick-machine, of a mixer having aperture V, broad arms W obliqued to axis of shaft, arms X parallel to said axis, oblique vanes Y, and spirally-arranged blades Z, with a press-box, B, arranged as described.

2. The loose-weighted latch L and hinged bar M combined with parts G H, as and for the purpose described.

A. DEDERICK, DAVID Dnlirnnn. 

